Air conditioning and circulating apparatus



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AIR CONDITIONING AND CIRCULATING APPARATUS Filed Jan. 5, 1927 K t Y//J//J//J//J/ i Chqrle AMOOV@ Patented June 10, 1930 CHARLES A. MOORE, OFEDINA, MINNESOTA AIR CONDITIONING .AND CIRCULATING APPARATUS Applicationfiled January a, 1927. serial No. 158,763.

My invention relates to improvements in air conditioning and circulatingapparatus.

An object of the invention is to supply an apparatus for providingheated or refrigerated ventilation for an associated room or rooms andfor reversely circulating air in such room or rooms, under heating orrefrig eration.

Another object of the invention is to provide an apparatus, as above,through which air may be recirculated under heating or refrigeration.

An additional object of the invention is to provide an apparatus of thepresent kind wherein the'structure is simple, durable and relativelyinexpensive and which is eilicient in operation and easily controlled toeect the desired results.

In the accompanying drawing, the single figure is a view mainly invertical section, the same illustrating an embodiment of my invention.

Reference being had to the drawing it will be seen that a constructionforming an enclosed space and a container for liquid beneath said spacewhich opens thereinto, includes a tank 10 and a structure superimposingsaid tank, said structure comprising end walls 11 and 12, side walls 13(only one shown) and a ceiling 14. Between the end walls 11 and 12 is apartition 15 dividing the interior of the structure into two chambers Aand B, said ortion 15 being formed with an opening 16 tlierein andconstructedso that .the lower portion thereof extends for some distancedown into the tank 10. Said tank contains a quantity of liquid 17 thelevel of which is suitably maintained at an elevation slightly above thelower extremity of said partition 15. In other words, the lowerextremity of said partition 15 is submerged 1n the liquid 17 in tank 10.And from this, it will be understood that said chambers A and B are shutoff one from the other, except for the opening 16 in the partition 15.

Directed into chamber A from the outside of the structure is an airingress pipe 18, the same throughout the greater part of its length,within said chamber, extending dow.n wardly therein, Said pipe 18,opening at lts lower end slightly above the level of liquid 17 in tank10, is encircled by an open ended case or jacket 19, the lower end ofwhich d1ps slightly into said liquid in said tank. 'I his jacket 19 issuitably supported in posi- 55 tion about the pipe 18, as by means of abracket 20 anchored to the end wall 12. A downwardly directed nozzle 21,located within the pipe 18, is supplied with liquid from a feed pipe 22issuing from a pump 23, 60 which takes its supply through an inlet pipe24 leading thereto from tank 10. Said feed pipe 22 also supplies liquidfrom the tank 10 to a battery of downwardly directed noz- Vzles 25located in chamber B above the level 65 of the opening 16 in partition15. All of said nozzles 25 and the nozzle 21 spray liquid therefrom intothe tank 10. A blower fan 26, mounted in the opening 16 in the partition15 forces air from chamber A, through said 70 opening 16 into chamber Band through the spray from the nozzles 25 therein. In chamber B, remotefrom said fan 26, is an eliminator 27 of conventional pattern, the sametraversing the chamber B and serving in the usual manner, to catch anyliquid carried with the air passing therethrough under the force of thefan 26. This eliminator 27 is situated with respect to the tank 10 sothat any drain therefrom may gravitate back into said tank. On the sideof the eliminator 27, opposite the fan 26, a feed duct 28 issues fromthe chamber. This feed duct 28 extends to and opens into a room or rooms(not shown) in which the air is to be conditioned. Extending back fromsuch room or rooms is a return duct 29, the same opening intocompartment A. In the drawing. I have shown the feed duct 28 issuing othrough the ceiling 14 and the return duct 9 29 also issuing through theceiling 14, but it will be understood, of course, that said ducts mayissue through either of the end walls 11, 12 or side walls 13.

Horizontally disposed within 'chamber B is the main reach 30 of anegress duct, one end of which projects through partition'l andterminates in a downwardly extended reach 30a within chamber A, saidreach opening 100 into the outer air through side wall 13. Said e ressduct 30 extends through the eliminator 27 and on the side of saideliminator opposite the fan 26, said duct is supplied with two branchducts 31 and 32, the former extending upward to a point near the ceiling14 and the latter extending downward to a point near the lloor portion10a of the structure at the rim of tank 10. Between said eliminator 27and partition 15, said egress duct 30 is supplied with' additionalbranch ducts 33 and 34, branch duct 33 extending upward to a point nearthe ceiling 14 and branch duct 34 extending downward to a point slightlyabove the rim of the tank 10.

A cross duct 35 provides communication between the feed duct 28 and thechamber A, while a second cross duct 36 provides communication betweenthe return duct 29and the chamber B.

Dampers are provided in the apparatus as follows: damper 37 in feedduct'28 between chamber B and point of connection of cross duct 35 withsaid feed duct, damper 38 in said cross duct, damper 39 in return duct29 between chamber A and point of connection of cross duct 36 with saidreturn duct, damper 40 in said cross duct 36, damper 41 in pipe 18 abovenozzle 21, damper 42 in branch duct 31, damper 43 in branch duct 32,damper 44 in branch duct 33 and damper 45 in branch duct 34.

Coiled within tank 10 is a pipe 46 through which a suitable medium iscirculated to affect the temperature of the liquid 17 in said tank.

In use, the pump 23 and blower fan 26 are put into operation. Heated orrefrigerated liquid, as the case may be according to the nature of thelmedium circulated through pipe 17, is sprayed from the nozzle 21 inpipe 18 andfrom the nozzles 25 in chamber B. If the liquid is heated,the heating of the rooms associated with lthe apparatus will ensue and,if refrigerated, the refrigeration of said rooms will be eected. Thesimple heating or refrigerating of the associated rooms is accomplishedwithout ventilation and without re-circulation of air in the apparatusby closing all of the dampers, except damper 37 in feed duct 28 anddamper 39 in return duct 29. With the dampers thus adjusted, air isdrawn from chamber A and forced through the spray from nozzles 25,thence through the eliminator 27 and out of chamber B through feed duct28. In passing through chamber B, the air is washed and heated orrefrigerated as the case may be. Passing from the lfeed duct 28 underthe force of the blower fan 26, the conditioned air is circulatedthrough the room or rooms in connection with said duct and impelled backto chamber A through return duct 29, thus completing the cycle.

Fresh air is admitted to the apparatus and used air discharged therefromby opening damper 41 in pipe 18 and one or more of dampers 42, 43, 44and 45. With damper 41 open, fresh air is drawn into pipe 18 from theoutside by the action of the spray from nozzle 21 and by suction fromthe blower fan 26, said air being washed and refrigerated or heated bycontact with the spray in pipe 21, also in passing through the stratumof splashing liquid at the surface of liquid 17 withln the jacket 19and, further, in passing upward through jacket 19 into chamber A. Air 1sexpelled to the outside by opening any one of dampers 42, 43, 44 and 45in branch ducts 31, 32, 33 and 34. The provision made for selection ofthese dampers permits of a wide range of control in the expulsion of airfrom the apparatus, whereby warmer air at the ceiling or colder air atthe lower portion of chamber B, at e'ither side of the eliminator 27,may be forced to the outside.

Under certain circumstances it may be desirable to reverse thecirculation of the air in the room or rooms associated with myappliance,that is to say, to employ the feed duct 28 as a return duct and thereturn duct 29 as a feed duct. This condition is brought about byclosing damper 37 in feed duct, opening damper 38 in cross duct 35,closing damper 39 in return duct 29 and opening damper 40 in cross duct36. Air from chamber B- then passes through cross lduct 36 to duct 29,now the feed duct, and, in returning to the appliance cornes backthrough duct 28, now the return duct, to cross duct 35, whence it issuesinto chamber A.

Some of the air in the system may be recirculated through the applianceto re-heat or additionally refrigerate the same by opening one or theother of dampers 38l and 40 in cross ducts 35 and 36, when dampers 37and 39 in feed'and return ducts 28 and 29 are open. With damper 40 incross duct 36 open, air from chamber B is shunted back to chamber A.Likewise, when damper 38 in cross duct 35 is open, air is shunted backto chamber A from feed duct 28.

Changes in the specific form `of my invention, as herein disclosed, maybe made within the scope of what is claimed without departing from thespirit of my invention.

Having described my invention, what I claim as new and desire to protect4by Letters Patent is:

1. In combination, a structure forming an enclosed space and a tank fora refrigerating liquid beneath said space opening thereinto, a wall insaid structure extended down into the tank, beneath the normal level ofliquid therein, providing adjoining chambers in said space, a pipeextended downward from the outside into one of said chambers. and ter-lminating at its lower end above the surface of the liquid in said tank,an open ended jacket encircling said pipe and submerged at its lowerextremity in the liquid in the tank,

means for chilling said liquid in said tank, a nozzle in said pipedisposed to spray liquid downward therein, a damper in said pipe l abovesaid nozzle, a nozzle in the other chamber disposed to spray liquiddownward into said tank, a pump in piped communication with said tankIand with said nozzles for pumping liquid from the tank to the nozzles,

v chamber on the far side of said eliminator, a

return duct communicating with said lirst chamber, a cross-ductproviding communication between the second chamber and said return duct,a damper in said cross-duct and a damper in the return duct between saidfirst chamber and the junction between said crossduct and return duct, asecond cross-duct providing communication between said feed-duct andsaid first chamber, a damper in said second cross-duct and a damper inthe feed-duct between said second chamber and the junction betweensaidfeed-duct and'said second cross-duct, an egress duct opening to theoutside and having a reach thereof extended through said second chamber,valved branch ducts on opposite sides of the eliminator `extendingupward from said reach and opening near the ceiling of the secondchamber, and valved branch ducts also on opposite sides of saideliminator extending downward from4 said reach and opening near thefloor of said second chamber and above the liquid level in said tank.

2. In combination, a structure forming an enclosed space and a tank fora refrigerating liquid opening into said space, a wall-in said structureextending downward into the tank beneath the normal level of liquidtherein providing adjoining chambers in said space, a pipe extendingdownward into one of said chambers from the outside and terminating atits lower end above the surface of the liquid in said tank, a nozzle insaid pipe disposed to spray liquid downward therein, a nozzle in thesecond chamber disposed to spray liquid downward into said tank, a pumpin piped communication with said tank and with said nozzles for pumpingliquid from the tank to the nozzles, said wall haring an opening thereinat an elevation bclwaih the nozzle in said second chamber. a fan forblowing air from the first chamber, through said wall opening, into thesecond chamber and through the spray from the nozzle in said latterchamber, an eliminator at the side of said nozzle opposite said fan, afeed duct issuing from said second chamber on the far side of saideliminator, a return duct communicating with said rst chamber, and anegress duct leading from the second chamber to the outside.

3. In combination, a structure forming two adjacent chambers, means forblowing air from one chamber into the second chamber, means within saidsecond chamber for affecting the air entering the same, a feed ductissuing from said second chamber, a return duct communicating with saidfirst chamber, a cross-duct providing communication between the secondchamber and said return duct, a damper in, said cross-duct and a damperin the return duct between said first chamber and the junctionbetween'said crossduct and return duct, a second cross-duct providin gcommunication between said feed-duct and said lirst chamber, a damper insaid second cross-duct and a damper in the feed-duct between said secondchamber and the junction etween said feed-duct and said second crossuct.l

4. In combination, a structure forming a chamber, a conduit leading intosaid chamber, a fan associated with said conduit for impelling air intosaid chamber, means within the chamber for aiecting the air entering thesame, a feed duct leading from said chamber for conducting air to aremote point of use, a return duct leading from said point of use tosaid conduit, and two cross ducts, one leading from said chamber tothereturn duct and the'other from the feed duct to said conduit to shuntair back to said chamber before using the same.

5. In combination, a structure forming a chamber, a conduit leading intosaid chamber, a nozzle disposed in said chamber to spray liquid therein,a fan associated with said conduit for impelling air into said chamberthrough the spra from said nozzle, an eliminator in the cham er on theside of said nozzle opposite to said fan, a feed duct leading from thechamber on the far side of the eliminator, a return duct leading to saidconduit, means of ingress for fresh air to said conduit, and means ofegress for air from said chamber at either side of said eliminator.

6. In combination, a structure forming a chamber, a conduit leading intosaid charnber, a nozzle disposed in said chamber to spray liquidtherein, a fan associated with said conduit for impelling air into saidchamber through the spra from said nozzle, an eliminator in the c amberon the side of said nozzle opposite to said fan, a feed duct leadingfrom the chamber on the far side of the eliminator, a return ductleading to said conduit, means of ingress for fresh air to said conduit,and means of egress for air from both upper and lower portions of saidchamber on both sides of said eliminator.

7. In combination, a structure forming a chamber, a conduit leading intosaid chamber, a fan associated with said conduit for impellin air intothe chamber, means within said c amber for affecting the air enteringthe same, a feed duct leading from said 5 chamber, and a cross ductleading -from said chamber to said conduitfor recirculating air in saidchamber before thel same is expelled into said feed duct. l 8. Incombination; a structure Aforming a o, chamber, a tank at the lowerportion of said chamber for a quantity of liquid, a pipe extendingdownward from the outside into said chamber, the lower end of said pipeterminating above ythe surface of the liquid in the tank, an open-endedjacket encircling said pipe and submerged at its lower extremity in theliquid in the tank, means in said tank independent of said jacket, forchilling the liquid in the tank, a nozzle in the pipe directed to sprayliquid downward therein, means for pumping liquid from said tank to saidnozzle, and means of egress for air from said chamber.

In testimony whereof, I have signed my name to this specification.

CHARLES A. MOORE.

